To answer your question about shipping... and this all depends on how much effort you put into it...
I've seen quite a few methods used to ship items via UPS, FedEx, ground USPS Mail, ect... My old boss, and this was for a pretty good size company, had his herb shipped directly to the office via UPS. I dont know details on packaging there, but it used to kill me!
One of the best ways that I have seen to ship pills from location to location is one of those chocolate balls, hollowed out with candy in it. They're very easy to unpackage, cut the chocolate ball open at the seam, remove undesired candy, insert desired candy, super glue closed, seal back up in the packaging, and use scotch tape to close up the plastic wrapper. I've also seen a similar method used with Skittles bags, but they're a bit harder to open and seal shut.
LSD is an easy one, simply due to your being able to put liquid onto almost anything... As stated, it has no detectable smell so you're pretty much open to anything there.
As for the special K... I have only seen it shipped once, and it was in a small glass vial marked with vet stickers, which were acquired by a friend that worked in a local vet office. She worked up the stickers to reflect something along the lines of flea medicine, hooked us up with a bunch of shipping labels that made the whole thing look official, and we were all set.